I am having the same problem when trying to connect a second monitor to the second GPU (Nvidia GTX 1080). Only an X cursor can be displayed and the rest is a black screen. Nvidia X Server Settings detects 2 screens. Ubuntu 20.04 LTS Screen Display detects only 1 screen. Nvidia driver 460 with CUDA 11.2
Any update on how to fix this bug?
I am having the same problem when trying to connect a second monitor to the second GPU (Nvidia GTX 1080). Only an X cursor can be displayed and the rest is a black screen. Nvidia X Server Settings detects 2 screens. Ubuntu 20.04 LTS Screen Display detects only 1 screen. Nvidia driver 460 with CUDA 11.2